J. F. DiMarzio began developing games in BASIC on the TRS-80 Color Computer II in 1984. Today he is a seasoned Android developer with two professional applications and one game on the Android Marketplace, and an industry track record with major organizations including the U.S. Department of Defense and the Walt Disney Company. An accomplished author, he has written 13 books over the past 14 years.Visit us at wrox.com where you have access to free code samples, Programmer to Programmer forums, and discussions on the latest happenings in the industry from around the world.